Display apparatus and light source device used in the display apparatus

Abstract

A light source device including light-emitting diodes (LEDs) and a carrier is provided. Chromaticities of some LEDs fall in a first area of a chromaticity coordinate diagram, while chromaticities of the other LEDs fall in a second area of the chromaticity coordinate diagram. The second area and the first area are point symmetric to a white center of the chromaticity coordinate diagram. A chromaticity coordinate value farthest from the white center in the first area is (X1, Y1), and a chromaticity coordinate value farthest from the white center in the second area is (X2, Y2), wherein 0.06≧|X1−X2|≧0.03 and 0.06≧|Y1−Y2|≧0.03. The LEDs are disposed on the carrier, and a chromaticity difference of any two adjacent LEDs in the chromaticity coordinate diagram is (ΔX, ΔY), wherein |ΔX|≰0.01 and |ΔY|≰0.01.

What is claimed is: 
     
       1. A light source device, comprising:
 a plurality of light-emitting diodes (LEDs), chromaticities of a part of the LEDs falling in a first area of a chromaticity coordinate diagram, while chromaticities of the other LEDs falling in a second area of the chromaticity coordinate diagram, the second area and the first area being point symmetric to a first white center of the chromaticity coordinate diagram, a chromaticity coordinate value farthest from the white center in the first area being (X 1 , Y 1 ) and a second chromaticity coordinate value farthest from the white center in the second area being (X 2 , Y 2 ), wherein 0.06≧|X 1 −X 2 |≧0.03 and 0.06≧|Y 1 −Y 2 |≧0.03; and 
 a carrier, the LEDs being disposed on the carrier, and a chromaticity difference of any two adjacent LEDs in the chromaticity coordinate diagram being (ΔX, ΔY), wherein |ΔX|≦0.01 and |ΔY|≦0.01. 
 
     
     
       2. The light source device as claimed in  claim 1 , wherein the carrier is a printed circuit board (PCB) or a metal board. 
     
     
       3. The light source device as claimed in  claim 1 , wherein the carrier is a bar-shape carrier. 
     
     
       4. The light source device as claimed in  claim 3 , wherein the LEDs are arranged in a line. 
     
     
       5. The light source device as claimed in  claim 1 , wherein the LEDs are arranged in an array. 
     
     
       6. A display apparatus, comprising:
 a light source device as claimed in  claim 1 ; 
 a display panel, having a display area and a non-display area, wherein the non-display area surrounds the display area; and 
 a substrate, having a light-incident surface and a light-outlet surface, wherein the light-incident surface is disposed opposite to the light source device, and the light-outlet surface is disposed opposite to the display panel. 
 
     
     
       7. The display apparatus as claimed in  claim 6 , wherein the light-incident surface is adjoined to the light-outlet surface. 
     
     
       8. The display apparatus as claimed in  claim 7 , wherein a first space A is configured between the light source device and an edge of the display area, and a second space P is configured between any two adjacent LEDs, wherein 0.5≦A/P≦1. 
     
     
       9. The display apparatus as claimed in  claim 7 , wherein the substrate is a light guide plate or a diffuser plate. 
     
     
       10. The display apparatus as claimed in  claim 7 , wherein the carrier of the light source device is a bar-shape carrier. 
     
     
       11. The display apparatus as claimed in  claim 10 , wherein the LEDs of the light source device are arranged in a line. 
     
     
       12. The display apparatus as claimed in  claim 6 , wherein the light-incident surface is disposed opposite to the light-outlet surface. 
     
     
       13. The display apparatus as claimed in  claim 12 , wherein the LEDs of the light source device are arranged in an array. 
     
     
       14. The display apparatus as claimed in  claim 12 , wherein the substrate is a diffuser plate or a light guide plate. 
     
     
       15. The display apparatus as claimed in  claim 6 , wherein the carrier of the light source device is a PCB or a metal board. 
     
     
       16. The display apparatus as claimed in  claim 6 , further comprising a plurality of optical films disposed above the light-outlet surface.